net.sf.beanform.binding
Class DualBinding

java.lang.Object
  net.sf.beanform.binding.DualBinding

All Implemented Interfaces:

Locatable, org.apache.tapestry.IBinding

public class DualBinding
extends Object
implements org.apache.tapestry.IBinding

A special binding type that allows us to simulate adding and removing bindings to components. This binding behaves like a custom binding unless there is no custom binding, in which case it behaves like the standard (default) binding for a given binding name.

Author:

Daniel Gredler

Constructor Summary

DualBinding(org.apache.tapestry.IBinding custom, org.apache.tapestry.IBinding standard)

Method Summary

static void	addCustomBindings(org.apache.tapestry.IComponent component, Map<String,org.apache.tapestry.IBinding> bindings, boolean clearFirst) Adds temporary custom bindings to a component by overriding the existing bindings with DualBinding instances whose behavior can later be reverted.
String	getDescription()
Location	getLocation()
Object	getObject()
Object	getObject(Class type)
boolean	isInvariant()
static void	removeCustomBindings(org.apache.tapestry.IComponent component) Reverts the behavior of the specified component's temporarily customized bindings to whatever it was prior to customization.
void	setCustom(org.apache.tapestry.IBinding custom)
void	setObject(Object value)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DualBinding

public DualBinding(org.apache.tapestry.IBinding custom,
                   org.apache.tapestry.IBinding standard)

Method Detail

setCustom

public void setCustom(org.apache.tapestry.IBinding custom)

getObject

public Object getObject()

Specified by:

getObject in interface org.apache.tapestry.IBinding

getObject

public Object getObject(Class type)

Specified by:

getObject in interface org.apache.tapestry.IBinding

isInvariant

public boolean isInvariant()

Specified by:

isInvariant in interface org.apache.tapestry.IBinding

setObject

public void setObject(Object value)

Specified by:

setObject in interface org.apache.tapestry.IBinding

getDescription

public String getDescription()

Specified by:

getDescription in interface org.apache.tapestry.IBinding

getLocation

public Location getLocation()

Specified by:

getLocation in interface Locatable

addCustomBindings

public static void addCustomBindings(org.apache.tapestry.IComponent component,
                                     Map<String,org.apache.tapestry.IBinding> bindings,
                                     boolean clearFirst)

Adds temporary custom bindings to a component by overriding the existing bindings with DualBinding instances whose behavior can later be reverted.

removeCustomBindings

public static void removeCustomBindings(org.apache.tapestry.IComponent component)

Reverts the behavior of the specified component's temporarily customized bindings to whatever it was prior to customization.